The external tubes were dropped from later vessels because they generated a large bow wave and made depth keeping more difficult at periscope depth.
42.
He would join boats bound for Nelson at the entrance to Pelorus Sound and for eight kilometres would ride their bow waves to Pelorus Sound.
43.
:: I've added an interesting picture of Mira above, making a sort of bow wave ahead of it as it passes through the interstellar medium.
44.
In calm seas the boats were hard to spot, with little engine noise or bow wave, which increased the chance of a successful torpedo attack.
45.
The curve on the hull below the front funnel could seem to be a false bow wave, creating a misleading impression of the ship's speed.
46.
At greater speeds and in larger vessels it is the bow wave that is the greatest force impeding the vessel's forward motion through the water.
47.
For example, dolphins are famous for surfing on the bow waves of ships, sometimes just below the surface, or bouncing along on a wave's crest.
48.
But Robinson discovered that by funneling the bow wave through catamaran-like wings attached to both sides of a central hull, one could reduce the boat's waves.
49.
Even if the inlet is above the surface of the water, you may create a bow wave driving through and raise it close enough to be drawn in.
50.
Most look like bow waves ( similar to the waves at the head of a ship ), and so are usually referred to as molecular " bow shocks ".
